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Finding the Fourth Proportional to 159,217.66, 238,629.66 and 80,354.44

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Solution

The fourth proportional to 159,217.66, 238,629.66 and 80,354.44 is: 120,432.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,217.66 : 238,629.66 = 80,354.44 : x
  2. Step 2: Convert to fraction form
    159,217.66/238,629.66 = 80,354.44/x
  3. Step 3: Cross multiply
    159,217.66x = 238,629.66 × 80,354.44
  4. Step 4: Simplify right side
    159,217.66x = 19,174,952,696.69
  5. Step 5: Solve for x
    x = 19,174,952,696.69/159,217.66
  6. Step 6: Final answer
    x = 120,432.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.